tripal/tripal_cv/theme/js/jsTree/reference/_examples/1_async.php

<?
  // Make sure nothing is cached
  header("Cache-Control: must-revalidate");
  header("Cache-Control: post-check=0, pre-check=0", false);
  header("Pragma: no-cache");
  header("Expires: ".gmdate("D, d M Y H:i:s", mktime(date("H")-2, date("i"), date("s"), date("m"), date("d"), date("Y")))." GMT");
  header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT");

  // So that the loading indicator is visible
  sleep(1);

  // The id of the node being opened
  $id = $_REQUEST["id"];
  //echo $id;
  if($id == "0") {
    echo '['."\n";
    echo "\t".'{ attributes: { id : "pjson_1" }, state: "closed", data: "Root node 1" },'."\n";
    echo "\t".'{ attributes: { id : "pjson_5" }, data: "Root node 2" }'."\n";
    echo ']'."\n";
  }
  else {
    echo '['."\n";
    echo "\t".'{ attributes: { id : "pjson_2" }, data: { title : "Custom icon", icon : "../media/images/ok.png" } },'."\n";
    echo "\t".'{ attributes: { id : "pjson_3" }, data: "Child node 2" },'."\n";
    echo "\t".'{ attributes: { id : "pjson_4" }, data: "Some other child node" }'."\n";
    echo ']'."\n";
  }
  exit();
?>